dns problem..

Hi everybody… I’m havin’ this problem that drives me kinda crazy.
alright here I go:
I used to have a link from this provider but as I was not satisfied I wanted to change the provider, that’s what I did, but the problem now is that
all the wireless clients I have they have static ip and static DNS servers. is there any thing I can do in MT to not have the clients change their
dns servers at all?

You can catch and redirect all DNS traffic to specific servers on MikroTik router.

ip firewall nat add action=redirect chain=dstnat protocol=tcp dst-port=53 to-ports=53, the same for UDP protocol.
Set ip dns set allow-remote-requests=yes and specify primary DNS.